Modification of lipid peroxidation by HeNe-laser radiation in short-term immobilization stress

1993 ◽  
Author(s):  
Gregory E. Brill ◽  
Olga V. Proshina ◽  
Valentina N. Zhigalina ◽  
Lyudmila S. Filimonovskaya
Keyword(s):  
Lipid Peroxidation ◽  
Laser Radiation ◽  
Immobilization Stress ◽  
Short Term ◽  
Hene Laser

Bitter Melon Protects Against Lipid Peroxidation Caused by Immobilization Stress in Albino Rats

2009 ◽  
Vol 79 (1) ◽  
pp. 48-56 ◽  
Author(s):  
Chaturvedi
Keyword(s):  
Lipid Peroxidation ◽  
Immobilization Stress ◽  
Reduced Glutathione ◽  
Cumene Hydroperoxide ◽  
Liver Homogenate ◽  
Thiobarbituric Acid ◽  
Albino Rats ◽  
Bitter Melon ◽  
Protective Effects

In the present study, protective effects of bitter melon (Momordica charantia) extract on lipid peroxidation induced by immobilization stress in rats have been assessed. Graded doses of extract (50, 100, and 150 mg/kg body weight) were administered orally to rats subjected to immobilization stress for two hours for seven consecutive days. Stress was applied by keeping the rats in a cage where no movement was possible. After seven days, rats were killed by decapitation after ether anesthesia. Blood and liver were collected to measure thiobarbituric acid reactive substances, reduced glutathione, and catalase. In vitro effects of M. charantia extract on lipid peroxidation in liver homogenate of normal, control, and rats pretreated with extract were carried out against cumene hydroperoxide-induced lipid peroxidation. Results reveal that in vivo M. charantia inhibited stress-induced lipid peroxidation by increasing the levels of reduced glutathione and activities of catalase. These results were further supported by in vitro results. In vitro inhibition of lipid peroxidation was indicated by low levels of thiobarbituric acid in the liver homogenate from pretreated rats and normal rats when incubated with both cumene hydroperoxide and extract. Inhibition was also noted in the homogenate where the rats were pretreated but the mixture contained no extract. Thus this plant provides protection by strengthening the antioxidants like reduced glutathione and catalase. Inclusion of this plant in the daily diet would be beneficial.

scholarly journals Decreased glucorticoid sensitivity as a factor of stressogenic shifts in the activity of monoamine oxidase, lipid peroxidation, and behavior in rats

2003 ◽  
Vol 49 (5) ◽  
pp. 48-51 ◽  
Author(s):  
I. A. Volchegorsky ◽  
V. E. Tseilikman ◽  
D. S. Smirnov ◽  
S. A. Ship ◽  
A. V. Borisenkov
Keyword(s):  
Lipid Peroxidation ◽  
Monoamine Oxidase ◽  
Brain Tissue ◽  
Behavioral Disorders ◽  
Immobilization Stress ◽  
Glucocorticoid Hormones ◽  
And Behavior ◽  
The Brain

Four episodes of immobilization stress cause a decrease in the sensitivity to glucocorticoid hormones, followed by anxiogenic be­havioral disorders, enhanced monoamine oxidase-В (МАО-В) activity and simultaneously increased lipid peroxidation (LPO) in the brain tissue of rats. Concurrently, there is an increase in renal МАО-В activity, as well as renal and hepatic accumulation of LPO products. Administration of kenalog (2 mg/kg), a phar­macological analogue of glucocorticoid hormones, prevents the poststress МАО-В activation and LPO and attenuates anxiogen­ic behavioral disorders in the rats.

scholarly journals The activity of the first line enzymes of the antioxidant defence in the liver of pubertal rats during stress

2012 ◽  
Vol 58 (5) ◽  
pp. 573-578 ◽  
Author(s):  
Y.V. Volkova ◽  
L.L. Sukhova ◽  
V.V. Davydov ◽  
A.V. Goloborodko
Keyword(s):  
Superoxide Dismutase ◽  
Glutathione Peroxidase ◽  
Immobilization Stress ◽  
First Line ◽  
Short Term ◽  
Antioxidant Defence ◽  
Defence Enzymes ◽  
Antioxidant Defence Enzymes

The purpose of the work was to study the activity of the first line antioxidant defence enzymes in postmitochondrial fraction of liver of pubertal rats during immobilization stress. During short-term immobilization the activity of catalase and glutathione peroxidase (GPx) decreased. Long-term immobilization was accompanied by activation of GPx and superoxide dismutase in the liver postmitochondrial fraction of late pubertal and adult animals, but not early pubertal rats.

Involvement of striatal lipid peroxidation and inhibition of calcium influx into brain slices in neurobehavioral alterations in a rat model of short-term oral exposure to manganese

2008 ◽  
Vol 29 (6) ◽  
pp. 1062-1068 ◽  
Author(s):  
Daiana Silva Ávila ◽  
Priscila Gubert ◽  
Roselei Fachinetto ◽  
Caroline Wagner ◽  
Michael Aschner ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Rat Model ◽  
Calcium Influx ◽  
Brain Slices ◽  
Oral Exposure ◽  
Short Term

ESTIMATION OF THE SAFETY OF LOW-INTENSITY LASER RADIATION IN TREATMENT OF PATIENTS WITH PROFESSIONAL POLYNEUROPATHIES OF THE UPPER LIMBS

2021 ◽  
Author(s):  
S.V. Grebenkov ◽  
◽  
N.Y. Malkova ◽  
O.A. Kochetova ◽  
Keyword(s):  
Laser Radiation ◽  
Side Effects ◽  
Upper Extremities ◽  
Projection Area ◽  
Outpatient Basis ◽  
Short Term ◽  
Low Intensity ◽  
Number Of Patients ◽  
Intensity Laser ◽  
Local Side

Abstract: The inclusion of low-intensity laser radiation in the complex treatment of professional polyneuropathies of the upper extremities, due to its numerous biological effects, contributes to a statistically significant reduction in pain in the hands of patients, and improves the conduction of nerve impulses along the peripheral nerves of the hands. In addition to describing the positive clinical and neurophysiological trends achieved during treatment, the issue of the safety of the developed therapy method is important. The aim of the study is to assess the safety of the proposed method of low-intensity laser therapy (LILT) in patients with professional polyneuropathies of the upper extremities. Material and methods: on the basis of the department of occupational pathology, 116 patients (60 men, 56 women) with occupational polyneuropathies of the upper extremities were treated using LILT. Therapeutic measures were carried out using a semiconductor laser apparatus for red spectrum radiation (650 nm) with fiber-optic light guides for percutaneous therapy "ALP-01-Laton" in the sitting position of patients. Diffuse scattered laser radiation of the red region of the spectrum with an energy illumination of 0.7-1.1 mW / cm2 directly affected the projection area of the exit of the median nerve from the carpal tunnel to the hand. There were 5-10 procedures per course, the energy exposure of laser radiation and the number of sessions were determined individually. Results: To ensure the safety of the therapy, patients were included in the study strictly in accordance with the developed inclusion and non-inclusion criteria. Patients were treated in a specially equipped room with the use of personal protective equipment; safety rules were followed during the operation of the device. During treatment, all 116 patients treated with LILT did not have systemic side effects. A number of patients developed short-term complaints associated with local reactions: short-term tingling sensations and "goose bumps" in the hands, warmth, slight burning sensation, etc. All recorded local side effects occurred directly during LILT-procedures and were completely stopped within 1-5 minutes after their completion. In general, LILT-exposure did not cause serious side effects and was well tolerated by patients. 13.5% of patients noted a decrease in pain in the arms directly during the LILT treatment procedures. Conclusion. The developed method of LILT of professional polyneuropathies of the upper extremities is simple and convenient for use in clinical practice: it is applicable both in a hospital and on an outpatient basis. LILT has a limited list of contraindications, and is generally well tolerated by patients with minimal local side effects.

scholarly journals tert-Butyl Hydroperoxide (tBHP)-Induced Lipid Peroxidation and Embryonic Defects Resemble Glucose-6-Phosphate Dehydrogenase (G6PD) Deficiency in C. elegans

2020 ◽  
Vol 21 (22) ◽  
pp. 8688
Author(s):  
Hung-Chi Yang ◽  
Hsiang Yu ◽  
Tian-Hsiang Ma ◽  
Wen-Ye Tjong ◽  
Arnold Stern ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
G6pd Deficiency ◽  
Short Term ◽  
Butyl Hydroperoxide ◽  
Tert Butyl ◽  
C Elegans ◽  
Tert Butyl Hydroperoxide ◽  
Calcium Independent Phospholipase A2 ◽  
Glucose 6 Phosphate Dehydrogenase

G6PD is required for embryonic development in animals, as severe G6PD deficiency is lethal to mice, zebrafish and nematode. Lipid peroxidation is linked to membrane-associated embryonic defects in Caenorhabditis elegans (C. elegans). However, the direct link between lipid peroxidation and embryonic lethality has not been established. The aim of this study was to delineate the role of lipid peroxidation in gspd-1-knockdown (ortholog of g6pd) C. elegans during reproduction. tert-butyl hydroperoxide (tBHP) was used as an exogenous inducer. Short-term tBHP administration reduced brood size and enhanced germ cell death in C. elegans. The altered phenotypes caused by tBHP resembled GSPD-1 deficiency in C. elegans. Mechanistically, tBHP-induced malondialdehyde (MDA) production and stimulated calcium-independent phospholipase A2 (iPLA) activity, leading to disturbed oogenesis and embryogenesis. The current study provides strong evidence to support the notion that enhanced lipid peroxidation in G6PD deficiency promotes death of germ cells and impairs embryogenesis in C. elegans.

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